/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package com.antgroup.geaflow.dsl.runtime.function.table.order;

import com.antgroup.geaflow.dsl.runtime.expression.Expression;
import java.io.Serializable;

public class OrderByField implements Serializable {

    public Expression expression;

    public ORDER order;

    public enum ORDER {

        ASC(1),

        DESC(-1);

        public final int value;

        ORDER(int value) {
            this.value = value;
        }
    }

    public OrderByField copy(Expression expression) {
        OrderByField field = new OrderByField();
        field.expression = expression;
        field.order = order;
        return field;
    }
}
